在 ms-access 表中插入多行的 SQL 代码
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【中文标题】在 ms-access 表中插入多行的 SQL 代码【英文标题】：SQL code to insert multiple rows in ms-access table 【发布时间】：2009-07-31 14:43:11 【问题描述】：我正在尝试加快我的代码速度，瓶颈似乎是通过 ODBC 从外部 Access 向 Jet MDB 单独插入语句。我需要一次插入 100 行，并且必须重复多次。
可以用 SQL 代码在一个表中插入多行吗？这是我尝试过的一些东西，但它们都不起作用。有什么建议吗？
INSERT INTO tblSimulation (p, cfYear, cfLocation, Delta, Design, SigmaLoc,
Sigma, SampleSize, Intercept) VALUES
(0, 2, 8.3, 0, 1, 0.5, 0.2, 220, 3.4),
(0, 2.4, 7.8, 0, 1, 0.5, 0.2, 220, 3.4),
(0, 2.3, 5.9, 0, 1, 0.5, 0.2, 220, 3.4)
INSERT INTO tblSimulation (p, cfYear, cfLocation, Delta, Design, SigmaLoc,
Sigma, SampleSize, Intercept) VALUES
(0, 2, 8.3, 0, 1, 0.5, 0.2, 220, 3.4) UNION
(0, 2.4, 7.8, 0, 1, 0.5, 0.2, 220, 3.4) UNION
(0, 2.3, 5.9, 0, 1, 0.5, 0.2, 220, 3.4)
【问题讨论】：
【参考方案1】：您的查询应如下所示
insert into aaa (col1, col2)
select * from (select 'yourdatarow1col1' as col1 , 'yourdatarow1col2' as col2 from ddd
union all
select 'yourdatarow2col1' as col1, 'yourdatarow1col2' as col2 from ddd) as tmp
aaa: 你的目标表是否在访问中
ddd：在access db中创建一个一列的表，必须有1行，不关心什么数据。
别名：所有别名都应该有相同的名称并且顺序有目标表
希望对你有用，我的过程从 15 分钟缩短到 1.30 分钟
再见 格斯
【讨论】：
别名在 UNION 中的连续 SELECT 语句中无关紧要。只有第一个 SELECT 语句的别名很重要，然后仅适用于基于 UNION 的 SELECT 语句。 不应该是普通的而不是UNION ALL吗？【参考方案2】：我不知道。而且我以前也有过这种痛苦。好消息是，如果您将插入包装在事务中并且不关闭每个调用之间的连接（例如，将命令作为参数传递），那么它比 open()->INSERT-> 快几个数量级close() 是。
使用类似的代码模式：
using (DbConnection conn = new OdbcConnection())
using (DbCommand cmd = conn.CreateCommand())
cmd.CommandText = "INSERT INTO foo(bar) VALUES (@bar)";
DbParameter p = cmd.CreateParameter();
p.ParameterName = "@bar";
cmd.CommandType = CommandType.Text;
conn.Open();
using (DbTransaction tran = conn.BeginTransaction())
cmd.Transaction = tran;
try
for (int i = 0; i < 1000; i++)
p.Value = i;
cmd.ExecuteNonQuery();
tran.Commit();
conn.Close();
catch (Exception)
tran.Rollback();
throw;
【讨论】：
当我尝试 SQL 命令“BEGIN TRANSACTION;”时ODBC 驱动程序返回错误：非法 SQL 指令。应为 DELETE、INSERT、PROCEDURE、SELECT 或 UPDATE。所以事务不能通过 ODBC 工作？ 不要将它们添加到您的 SQL 命令中，我们是您应用程序中的一个事务。我会更新我的答案。 谢谢。现在它起作用了。使用 20.000 行时，我的速度提高了大约 16%。 -1 “我不知道”也许是，但这是可能的。看我的回答；） 这个“重用连接”位非常有助于加速我使用了很长时间的一段代码。谢谢！【参考方案3】：我在R（我正在使用的软件）中找到了一个优雅的解决方案。 RODBC 包有一个函数 sqlSave，它允许一次将整个 data.frame 附加到表中。这几乎是事务中单个插入的两倍。
library(RODBC)
MDB <- odbcConnectAccess("database.mdb")
sqlSave(channel = MDB, dat = sims, tablename = "tblSimulation", append = TRUE, rownames = FALSE)
odbcClose(MDB)
【讨论】：
【参考方案4】：你必须使用 SQL 吗？如果没有，使用记录集插入行可能会获得更好的性能：
Set rs=db.OpenRecordset("tblSimulation", dbOpenDynaset)
With rs
.AddNew
!p=0
!cfYear=2
' And so on
.Update
End With
【讨论】：
我正在通过 ODBC 从外部 Access 连接到 mdb。这就是我使用 SQL 的原因 ODBC 不会影响这一点。 （至少我不知道。我随时准备了解 ODBC 的另一个怪癖。） 您仍然可以使用记录集。您获得的速度大约是单独 SQL 插入的 100 倍。【参考方案5】：是否可以将这些行写入文本文件？您可以使用 ADO 插入其中的所有行。
db = "C:\Docs\ltd.mdb"
Set cn = CreateObject("ADODB.Connection")
cn.Open "Provider = Microsoft.Jet.OLEDB.4.0; " & _
"Data Source =" & db
sSQL = "INSERT INTO New (id,schedno) " _
& "SELECT id,schedno FROM [new.txt] IN '' " _
& "'text;HDR=Yes;FMT=Delimited;database=C:\Docs\';"
cn.Execute sSQL
【讨论】：
【参考方案6】：VALUES 关键字用于单记录追加。您可以使用 SELECT 关键字从 source_table 插入多条记录：
INSERT INTO target_table ( field1, field2, .... )
SELECT field1, field2, ....
FROM source_table;
因此，如果您的值来自表或查询，那么您应该很好。如果不是，也许你可以把它们放到一张桌子上？
【讨论】：
哦，我看到 Remou 也使用了 SELECT 关键字。用它来抓取文本文件很有趣！【参考方案7】：您需要一个保证至少包含一行的表（最好是一行，在这种情况下您可以省略DISTINCT 关键字）。这里我使用我的标准问题辅助表Calendar。在派生表DT1 中，您必须仅在第一次出现时提供列相关名称（俗称“别名”）：
INSERT INTO tblSimulation (p, cfYear, cfLocation, [Delta], Design, SigmaLoc,
Sigma, SampleSize, Intercept)
SELECT DT1.p, DT1.cfYear, DT1.cfLocation,
DT1.Delta, DT1.Design, DT1.SigmaLoc,
DT1.Sigma, DT1.SampleSize, DT1.Intercept
FROM (
SELECT DISTINCT 0 AS p, 2 AS cfYear, 8.3 AS cfLocation,
0 AS Delta, 1 AS Design, 0.5 AS SigmaLoc,
0.2 AS Sigma, 220 AS SampleSize, 3.4 AS Intercept
FROM Calendar
UNION ALL
SELECT DISTINCT 0, 2.4, 7.8,
0, 1, 0.5,
0.2, 220, 3.4
FROM Calendar
UNION ALL
SELECT DISTINCT 0, 2.3, 5.9,
0, 1, 0.5,
0.2, 220, 3.4
FROM Calendar
) AS DT1;
现在有个坏消息：您只能在单个查询中创建 49 个UNION ALLs，之后 Access 数据库引擎抱怨它“太复杂”。
为了支持存储过程，应避免使用动态 SQL，无论如何，派生表中的列相关名称使动态 SQL 对这种结构来说是一种痛苦。因此，这里有一个示例，它使用具有 49 * 9 = 441 个参数的 proc 在一次执行中创建多达 49 行。
有人问性能。好吧，这个过程在我的机器上大约 100 毫秒内创建了 49 行
架构：
CREATE TABLE OneRowTable
(
lock CHAR(1) DEFAULT 'x' NOT NULL PRIMARY KEY,
CONSTRAINT OneRowTable__lock CHECK (lock = 'x')
)
;
INSERT INTO OneRowTable (lock) VALUES ('x')
;
CREATE TABLE tblSimulation
(
p DECIMAL(19,4),
cfYear DECIMAL(19,4),
cfLocation DECIMAL(19,4),
Delta DECIMAL(19,4),
Design DECIMAL(19,4),
SigmaLoc DECIMAL(19,4),
Sigma DECIMAL(19,4),
SampleSize DECIMAL(19,4),
Intercept DECIMAL(19,4)
)
;
CREATE PROCEDURE Add100Simulations
(
:001_1 DECIMAL(19, 4) = NULL,
:001_2 DECIMAL(19, 4) = NULL,
:001_3 DECIMAL(19, 4) = NULL,
:001_4 DECIMAL(19, 4) = NULL,
:001_5 DECIMAL(19, 4) = NULL,
:001_6 DECIMAL(19, 4) = NULL,
:001_7 DECIMAL(19, 4) = NULL,
:001_8 DECIMAL(19, 4) = NULL,
:001_9 DECIMAL(19, 4) = NULL,
:002_1 DECIMAL(19, 4) = NULL,
:002_2 DECIMAL(19, 4) = NULL,
:002_3 DECIMAL(19, 4) = NULL,
:002_4 DECIMAL(19, 4) = NULL,
:002_5 DECIMAL(19, 4) = NULL,
:002_6 DECIMAL(19, 4) = NULL,
:002_7 DECIMAL(19, 4) = NULL,
:002_8 DECIMAL(19, 4) = NULL,
:002_9 DECIMAL(19, 4) = NULL,
:003_1 DECIMAL(19, 4) = NULL,
:003_2 DECIMAL(19, 4) = NULL,
:003_3 DECIMAL(19, 4) = NULL,
:003_4 DECIMAL(19, 4) = NULL,
:003_5 DECIMAL(19, 4) = NULL,
:003_6 DECIMAL(19, 4) = NULL,
:003_7 DECIMAL(19, 4) = NULL,
:003_8 DECIMAL(19, 4) = NULL,
:003_9 DECIMAL(19, 4) = NULL,
:004_1 DECIMAL(19, 4) = NULL,
:004_2 DECIMAL(19, 4) = NULL,
:004_3 DECIMAL(19, 4) = NULL,
:004_4 DECIMAL(19, 4) = NULL,
:004_5 DECIMAL(19, 4) = NULL,
:004_6 DECIMAL(19, 4) = NULL,
:004_7 DECIMAL(19, 4) = NULL,
:004_8 DECIMAL(19, 4) = NULL,
:004_9 DECIMAL(19, 4) = NULL,
:005_1 DECIMAL(19, 4) = NULL,
:005_2 DECIMAL(19, 4) = NULL,
:005_3 DECIMAL(19, 4) = NULL,
:005_4 DECIMAL(19, 4) = NULL,
:005_5 DECIMAL(19, 4) = NULL,
:005_6 DECIMAL(19, 4) = NULL,
:005_7 DECIMAL(19, 4) = NULL,
:005_8 DECIMAL(19, 4) = NULL,
:005_9 DECIMAL(19, 4) = NULL,
:006_1 DECIMAL(19, 4) = NULL,
:006_2 DECIMAL(19, 4) = NULL,
:006_3 DECIMAL(19, 4) = NULL,
:006_4 DECIMAL(19, 4) = NULL,
:006_5 DECIMAL(19, 4) = NULL,
:006_6 DECIMAL(19, 4) = NULL,
:006_7 DECIMAL(19, 4) = NULL,
:006_8 DECIMAL(19, 4) = NULL,
:006_9 DECIMAL(19, 4) = NULL,
:007_1 DECIMAL(19, 4) = NULL,
:007_2 DECIMAL(19, 4) = NULL,
:007_3 DECIMAL(19, 4) = NULL,
:007_4 DECIMAL(19, 4) = NULL,
:007_5 DECIMAL(19, 4) = NULL,
:007_6 DECIMAL(19, 4) = NULL,
:007_7 DECIMAL(19, 4) = NULL,
:007_8 DECIMAL(19, 4) = NULL,
:007_9 DECIMAL(19, 4) = NULL,
:008_1 DECIMAL(19, 4) = NULL,
:008_2 DECIMAL(19, 4) = NULL,
:008_3 DECIMAL(19, 4) = NULL,
:008_4 DECIMAL(19, 4) = NULL,
:008_5 DECIMAL(19, 4) = NULL,
:008_6 DECIMAL(19, 4) = NULL,
:008_7 DECIMAL(19, 4) = NULL,
:008_8 DECIMAL(19, 4) = NULL,
:008_9 DECIMAL(19, 4) = NULL,
:009_1 DECIMAL(19, 4) = NULL,
:009_2 DECIMAL(19, 4) = NULL,
:009_3 DECIMAL(19, 4) = NULL,
:009_4 DECIMAL(19, 4) = NULL,
:009_5 DECIMAL(19, 4) = NULL,
:009_6 DECIMAL(19, 4) = NULL,
:009_7 DECIMAL(19, 4) = NULL,
:009_8 DECIMAL(19, 4) = NULL,
:009_9 DECIMAL(19, 4) = NULL,
:010_1 DECIMAL(19, 4) = NULL,
:010_2 DECIMAL(19, 4) = NULL,
:010_3 DECIMAL(19, 4) = NULL,
:010_4 DECIMAL(19, 4) = NULL,
:010_5 DECIMAL(19, 4) = NULL,
:010_6 DECIMAL(19, 4) = NULL,
:010_7 DECIMAL(19, 4) = NULL,
:010_8 DECIMAL(19, 4) = NULL,
:010_9 DECIMAL(19, 4) = NULL,
:011_1 DECIMAL(19, 4) = NULL,
:011_2 DECIMAL(19, 4) = NULL,
:011_3 DECIMAL(19, 4) = NULL,
:011_4 DECIMAL(19, 4) = NULL,
:011_5 DECIMAL(19, 4) = NULL,
:011_6 DECIMAL(19, 4) = NULL,
:011_7 DECIMAL(19, 4) = NULL,
:011_8 DECIMAL(19, 4) = NULL,
:011_9 DECIMAL(19, 4) = NULL,
:012_1 DECIMAL(19, 4) = NULL,
:012_2 DECIMAL(19, 4) = NULL,
:012_3 DECIMAL(19, 4) = NULL,
:012_4 DECIMAL(19, 4) = NULL,
:012_5 DECIMAL(19, 4) = NULL,
:012_6 DECIMAL(19, 4) = NULL,
:012_7 DECIMAL(19, 4) = NULL,
:012_8 DECIMAL(19, 4) = NULL,
:012_9 DECIMAL(19, 4) = NULL,
:013_1 DECIMAL(19, 4) = NULL,
:013_2 DECIMAL(19, 4) = NULL,
:013_3 DECIMAL(19, 4) = NULL,
:013_4 DECIMAL(19, 4) = NULL,
:013_5 DECIMAL(19, 4) = NULL,
:013_6 DECIMAL(19, 4) = NULL,
:013_7 DECIMAL(19, 4) = NULL,
:013_8 DECIMAL(19, 4) = NULL,
:013_9 DECIMAL(19, 4) = NULL,
:014_1 DECIMAL(19, 4) = NULL,
:014_2 DECIMAL(19, 4) = NULL,
:014_3 DECIMAL(19, 4) = NULL,
:014_4 DECIMAL(19, 4) = NULL,
:014_5 DECIMAL(19, 4) = NULL,
:014_6 DECIMAL(19, 4) = NULL,
:014_7 DECIMAL(19, 4) = NULL,
:014_8 DECIMAL(19, 4) = NULL,
:014_9 DECIMAL(19, 4) = NULL,
:015_1 DECIMAL(19, 4) = NULL,
:015_2 DECIMAL(19, 4) = NULL,
:015_3 DECIMAL(19, 4) = NULL,
:015_4 DECIMAL(19, 4) = NULL,
:015_5 DECIMAL(19, 4) = NULL,
:015_6 DECIMAL(19, 4) = NULL,
:015_7 DECIMAL(19, 4) = NULL,
:015_8 DECIMAL(19, 4) = NULL,
:015_9 DECIMAL(19, 4) = NULL,
:016_1 DECIMAL(19, 4) = NULL,
:016_2 DECIMAL(19, 4) = NULL,
:016_3 DECIMAL(19, 4) = NULL,
:016_4 DECIMAL(19, 4) = NULL,
:016_5 DECIMAL(19, 4) = NULL,
:016_6 DECIMAL(19, 4) = NULL,
:016_7 DECIMAL(19, 4) = NULL,
:016_8 DECIMAL(19, 4) = NULL,
:016_9 DECIMAL(19, 4) = NULL,
:017_1 DECIMAL(19, 4) = NULL,
:017_2 DECIMAL(19, 4) = NULL,
:017_3 DECIMAL(19, 4) = NULL,
:017_4 DECIMAL(19, 4) = NULL,
:017_5 DECIMAL(19, 4) = NULL,
:017_6 DECIMAL(19, 4) = NULL,
:017_7 DECIMAL(19, 4) = NULL,
:017_8 DECIMAL(19, 4) = NULL,
:017_9 DECIMAL(19, 4) = NULL,
:018_1 DECIMAL(19, 4) = NULL,
:018_2 DECIMAL(19, 4) = NULL,
:018_3 DECIMAL(19, 4) = NULL,
:018_4 DECIMAL(19, 4) = NULL,
:018_5 DECIMAL(19, 4) = NULL,
:018_6 DECIMAL(19, 4) = NULL,
:018_7 DECIMAL(19, 4) = NULL,
:018_8 DECIMAL(19, 4) = NULL,
:018_9 DECIMAL(19, 4) = NULL,
:019_1 DECIMAL(19, 4) = NULL,
:019_2 DECIMAL(19, 4) = NULL,
:019_3 DECIMAL(19, 4) = NULL,
:019_4 DECIMAL(19, 4) = NULL,
:019_5 DECIMAL(19, 4) = NULL,
:019_6 DECIMAL(19, 4) = NULL,
:019_7 DECIMAL(19, 4) = NULL,
:019_8 DECIMAL(19, 4) = NULL,
:019_9 DECIMAL(19, 4) = NULL,
:020_1 DECIMAL(19, 4) = NULL,
:020_2 DECIMAL(19, 4) = NULL,
:020_3 DECIMAL(19, 4) = NULL,
:020_4 DECIMAL(19, 4) = NULL,
:020_5 DECIMAL(19, 4) = NULL,
:020_6 DECIMAL(19, 4) = NULL,
:020_7 DECIMAL(19, 4) = NULL,
:020_8 DECIMAL(19, 4) = NULL,
:020_9 DECIMAL(19, 4) = NULL,
:021_1 DECIMAL(19, 4) = NULL,
:021_2 DECIMAL(19, 4) = NULL,
:021_3 DECIMAL(19, 4) = NULL,
:021_4 DECIMAL(19, 4) = NULL,
:021_5 DECIMAL(19, 4) = NULL,
:021_6 DECIMAL(19, 4) = NULL,
:021_7 DECIMAL(19, 4) = NULL,
:021_8 DECIMAL(19, 4) = NULL,
:021_9 DECIMAL(19, 4) = NULL,
:022_1 DECIMAL(19, 4) = NULL,
:022_2 DECIMAL(19, 4) = NULL,
:022_3 DECIMAL(19, 4) = NULL,
:022_4 DECIMAL(19, 4) = NULL,
:022_5 DECIMAL(19, 4) = NULL,
:022_6 DECIMAL(19, 4) = NULL,
:022_7 DECIMAL(19, 4) = NULL,
:022_8 DECIMAL(19, 4) = NULL,
:022_9 DECIMAL(19, 4) = NULL,
:023_1 DECIMAL(19, 4) = NULL,
:023_2 DECIMAL(19, 4) = NULL,
:023_3 DECIMAL(19, 4) = NULL,
:023_4 DECIMAL(19, 4) = NULL,
:023_5 DECIMAL(19, 4) = NULL,
:023_6 DECIMAL(19, 4) = NULL,
:023_7 DECIMAL(19, 4) = NULL,
:023_8 DECIMAL(19, 4) = NULL,
:023_9 DECIMAL(19, 4) = NULL,
:024_1 DECIMAL(19, 4) = NULL,
:024_2 DECIMAL(19, 4) = NULL,
:024_3 DECIMAL(19, 4) = NULL,
:024_4 DECIMAL(19, 4) = NULL,
:024_5 DECIMAL(19, 4) = NULL,
:024_6 DECIMAL(19, 4) = NULL,
:024_7 DECIMAL(19, 4) = NULL,
:024_8 DECIMAL(19, 4) = NULL,
:024_9 DECIMAL(19, 4) = NULL,
:025_1 DECIMAL(19, 4) = NULL,
:025_2 DECIMAL(19, 4) = NULL,
:025_3 DECIMAL(19, 4) = NULL,
:025_4 DECIMAL(19, 4) = NULL,
:025_5 DECIMAL(19, 4) = NULL,
:025_6 DECIMAL(19, 4) = NULL,
:025_7 DECIMAL(19, 4) = NULL,
:025_8 DECIMAL(19, 4) = NULL,
:025_9 DECIMAL(19, 4) = NULL,
:026_1 DECIMAL(19, 4) = NULL,
:026_2 DECIMAL(19, 4) = NULL,
:026_3 DECIMAL(19, 4) = NULL,
:026_4 DECIMAL(19, 4) = NULL,
:026_5 DECIMAL(19, 4) = NULL,
:026_6 DECIMAL(19, 4) = NULL,
:026_7 DECIMAL(19, 4) = NULL,
:026_8 DECIMAL(19, 4) = NULL,
:026_9 DECIMAL(19, 4) = NULL,
:027_1 DECIMAL(19, 4) = NULL,
:027_2 DECIMAL(19, 4) = NULL,
:027_3 DECIMAL(19, 4) = NULL,
:027_4 DECIMAL(19, 4) = NULL,
:027_5 DECIMAL(19, 4) = NULL,
:027_6 DECIMAL(19, 4) = NULL,
:027_7 DECIMAL(19, 4) = NULL,
:027_8 DECIMAL(19, 4) = NULL,
:027_9 DECIMAL(19, 4) = NULL,
:028_1 DECIMAL(19, 4) = NULL,
:028_2 DECIMAL(19, 4) = NULL,
:028_3 DECIMAL(19, 4) = NULL,
:028_4 DECIMAL(19, 4) = NULL,
:028_5 DECIMAL(19, 4) = NULL,
:028_6 DECIMAL(19, 4) = NULL,
:028_7 DECIMAL(19, 4) = NULL,
:028_8 DECIMAL(19, 4) = NULL,
:028_9 DECIMAL(19, 4) = NULL,
:029_1 DECIMAL(19, 4) = NULL,
:029_2 DECIMAL(19, 4) = NULL,
:029_3 DECIMAL(19, 4) = NULL,
:029_4 DECIMAL(19, 4) = NULL,
:029_5 DECIMAL(19, 4) = NULL,
:029_6 DECIMAL(19, 4) = NULL,
:029_7 DECIMAL(19, 4) = NULL,
:029_8 DECIMAL(19, 4) = NULL,
:029_9 DECIMAL(19, 4) = NULL,
:030_1 DECIMAL(19, 4) = NULL,
:030_2 DECIMAL(19, 4) = NULL,
:030_3 DECIMAL(19, 4) = NULL,
:030_4 DECIMAL(19, 4) = NULL,
:030_5 DECIMAL(19, 4) = NULL,
:030_6 DECIMAL(19, 4) = NULL,
:030_7 DECIMAL(19, 4) = NULL,
:030_8 DECIMAL(19, 4) = NULL,
:030_9 DECIMAL(19, 4) = NULL,
:031_1 DECIMAL(19, 4) = NULL,
:031_2 DECIMAL(19, 4) = NULL,
:031_3 DECIMAL(19, 4) = NULL,
:031_4 DECIMAL(19, 4) = NULL,
:031_5 DECIMAL(19, 4) = NULL,
:031_6 DECIMAL(19, 4) = NULL,
:031_7 DECIMAL(19, 4) = NULL,
:031_8 DECIMAL(19, 4) = NULL,
:031_9 DECIMAL(19, 4) = NULL,
:032_1 DECIMAL(19, 4) = NULL,
:032_2 DECIMAL(19, 4) = NULL,
:032_3 DECIMAL(19, 4) = NULL,
:032_4 DECIMAL(19, 4) = NULL,
:032_5 DECIMAL(19, 4) = NULL,
:032_6 DECIMAL(19, 4) = NULL,
:032_7 DECIMAL(19, 4) = NULL,
:032_8 DECIMAL(19, 4) = NULL,
:032_9 DECIMAL(19, 4) = NULL,
:033_1 DECIMAL(19, 4) = NULL,
:033_2 DECIMAL(19, 4) = NULL,
:033_3 DECIMAL(19, 4) = NULL,
:033_4 DECIMAL(19, 4) = NULL,
:033_5 DECIMAL(19, 4) = NULL,
:033_6 DECIMAL(19, 4) = NULL,
:033_7 DECIMAL(19, 4) = NULL,
:033_8 DECIMAL(19, 4) = NULL,
:033_9 DECIMAL(19, 4) = NULL,
:034_1 DECIMAL(19, 4) = NULL,
:034_2 DECIMAL(19, 4) = NULL,
:034_3 DECIMAL(19, 4) = NULL,
:034_4 DECIMAL(19, 4) = NULL,
:034_5 DECIMAL(19, 4) = NULL,
:034_6 DECIMAL(19, 4) = NULL,
:034_7 DECIMAL(19, 4) = NULL,
:034_8 DECIMAL(19, 4) = NULL,
:034_9 DECIMAL(19, 4) = NULL,
:035_1 DECIMAL(19, 4) = NULL,
:035_2 DECIMAL(19, 4) = NULL,
:035_3 DECIMAL(19, 4) = NULL,
:035_4 DECIMAL(19, 4) = NULL,
:035_5 DECIMAL(19, 4) = NULL,
:035_6 DECIMAL(19, 4) = NULL,
:035_7 DECIMAL(19, 4) = NULL,
:035_8 DECIMAL(19, 4) = NULL,
:035_9 DECIMAL(19, 4) = NULL,
:036_1 DECIMAL(19, 4) = NULL,
:036_2 DECIMAL(19, 4) = NULL,
:036_3 DECIMAL(19, 4) = NULL,
:036_4 DECIMAL(19, 4) = NULL,
:036_5 DECIMAL(19, 4) = NULL,
:036_6 DECIMAL(19, 4) = NULL,
:036_7 DECIMAL(19, 4) = NULL,
:036_8 DECIMAL(19, 4) = NULL,
:036_9 DECIMAL(19, 4) = NULL,
:037_1 DECIMAL(19, 4) = NULL,
:037_2 DECIMAL(19, 4) = NULL,
:037_3 DECIMAL(19, 4) = NULL,
:037_4 DECIMAL(19, 4) = NULL,
:037_5 DECIMAL(19, 4) = NULL,
:037_6 DECIMAL(19, 4) = NULL,
:037_7 DECIMAL(19, 4) = NULL,
:037_8 DECIMAL(19, 4) = NULL,
:037_9 DECIMAL(19, 4) = NULL,
:038_1 DECIMAL(19, 4) = NULL,
:038_2 DECIMAL(19, 4) = NULL,
:038_3 DECIMAL(19, 4) = NULL,
:038_4 DECIMAL(19, 4) = NULL,
:038_5 DECIMAL(19, 4) = NULL,
:038_6 DECIMAL(19, 4) = NULL,
:038_7 DECIMAL(19, 4) = NULL,
:038_8 DECIMAL(19, 4) = NULL,
:038_9 DECIMAL(19, 4) = NULL,
:039_1 DECIMAL(19, 4) = NULL,
:039_2 DECIMAL(19, 4) = NULL,
:039_3 DECIMAL(19, 4) = NULL,
:039_4 DECIMAL(19, 4) = NULL,
:039_5 DECIMAL(19, 4) = NULL,
:039_6 DECIMAL(19, 4) = NULL,
:039_7 DECIMAL(19, 4) = NULL,
:039_8 DECIMAL(19, 4) = NULL,
:039_9 DECIMAL(19, 4) = NULL,
:040_1 DECIMAL(19, 4) = NULL,
:040_2 DECIMAL(19, 4) = NULL,
:040_3 DECIMAL(19, 4) = NULL,
:040_4 DECIMAL(19, 4) = NULL,
:040_5 DECIMAL(19, 4) = NULL,
:040_6 DECIMAL(19, 4) = NULL,
:040_7 DECIMAL(19, 4) = NULL,
:040_8 DECIMAL(19, 4) = NULL,
:040_9 DECIMAL(19, 4) = NULL,
:041_1 DECIMAL(19, 4) = NULL,
:041_2 DECIMAL(19, 4) = NULL,
:041_3 DECIMAL(19, 4) = NULL,
:041_4 DECIMAL(19, 4) = NULL,
:041_5 DECIMAL(19, 4) = NULL,
:041_6 DECIMAL(19, 4) = NULL,
:041_7 DECIMAL(19, 4) = NULL,
:041_8 DECIMAL(19, 4) = NULL,
:041_9 DECIMAL(19, 4) = NULL,
:042_1 DECIMAL(19, 4) = NULL,
:042_2 DECIMAL(19, 4) = NULL,
:042_3 DECIMAL(19, 4) = NULL,
:042_4 DECIMAL(19, 4) = NULL,
:042_5 DECIMAL(19, 4) = NULL,
:042_6 DECIMAL(19, 4) = NULL,
:042_7 DECIMAL(19, 4) = NULL,
:042_8 DECIMAL(19, 4) = NULL,
:042_9 DECIMAL(19, 4) = NULL,
:043_1 DECIMAL(19, 4) = NULL,
:043_2 DECIMAL(19, 4) = NULL,
:043_3 DECIMAL(19, 4) = NULL,
:043_4 DECIMAL(19, 4) = NULL,
:043_5 DECIMAL(19, 4) = NULL,
:043_6 DECIMAL(19, 4) = NULL,
:043_7 DECIMAL(19, 4) = NULL,
:043_8 DECIMAL(19, 4) = NULL,
:043_9 DECIMAL(19, 4) = NULL,
:044_1 DECIMAL(19, 4) = NULL,
:044_2 DECIMAL(19, 4) = NULL,
:044_3 DECIMAL(19, 4) = NULL,
:044_4 DECIMAL(19, 4) = NULL,
:044_5 DECIMAL(19, 4) = NULL,
:044_6 DECIMAL(19, 4) = NULL,
:044_7 DECIMAL(19, 4) = NULL,
:044_8 DECIMAL(19, 4) = NULL,
:044_9 DECIMAL(19, 4) = NULL,
:045_1 DECIMAL(19, 4) = NULL,
:045_2 DECIMAL(19, 4) = NULL,
:045_3 DECIMAL(19, 4) = NULL,
:045_4 DECIMAL(19, 4) = NULL,
:045_5 DECIMAL(19, 4) = NULL,
:045_6 DECIMAL(19, 4) = NULL,
:045_7 DECIMAL(19, 4) = NULL,
:045_8 DECIMAL(19, 4) = NULL,
:045_9 DECIMAL(19, 4) = NULL,
:046_1 DECIMAL(19, 4) = NULL,
:046_2 DECIMAL(19, 4) = NULL,
:046_3 DECIMAL(19, 4) = NULL,
:046_4 DECIMAL(19, 4) = NULL,
:046_5 DECIMAL(19, 4) = NULL,
:046_6 DECIMAL(19, 4) = NULL,
:046_7 DECIMAL(19, 4) = NULL,
:046_8 DECIMAL(19, 4) = NULL,
:046_9 DECIMAL(19, 4) = NULL,
:047_1 DECIMAL(19, 4) = NULL,
:047_2 DECIMAL(19, 4) = NULL,
:047_3 DECIMAL(19, 4) = NULL,
:047_4 DECIMAL(19, 4) = NULL,
:047_5 DECIMAL(19, 4) = NULL,
:047_6 DECIMAL(19, 4) = NULL,
:047_7 DECIMAL(19, 4) = NULL,
:047_8 DECIMAL(19, 4) = NULL,
:047_9 DECIMAL(19, 4) = NULL,
:048_1 DECIMAL(19, 4) = NULL,
:048_2 DECIMAL(19, 4) = NULL,
:048_3 DECIMAL(19, 4) = NULL,
:048_4 DECIMAL(19, 4) = NULL,
:048_5 DECIMAL(19, 4) = NULL,
:048_6 DECIMAL(19, 4) = NULL,
:048_7 DECIMAL(19, 4) = NULL,
:048_8 DECIMAL(19, 4) = NULL,
:048_9 DECIMAL(19, 4) = NULL,
:049_1 DECIMAL(19, 4) = NULL,
:049_2 DECIMAL(19, 4) = NULL,
:049_3 DECIMAL(19, 4) = NULL,
:049_4 DECIMAL(19, 4) = NULL,
:049_5 DECIMAL(19, 4) = NULL,
:049_6 DECIMAL(19, 4) = NULL,
:049_7 DECIMAL(19, 4) = NULL,
:049_8 DECIMAL(19, 4) = NULL,
:049_9 DECIMAL(19, 4) = NULL
)
AS
INSERT INTO tblSimulation (p, cfYear, cfLocation, [Delta], Design, SigmaLoc,
Sigma, SampleSize, Intercept)
SELECT DT1.p, DT1.cfYear, DT1.cfLocation,
DT1.Delta, DT1.Design, DT1.SigmaLoc,
DT1.Sigma, DT1.SampleSize, DT1.Intercept
FROM (
SELECT :001_1 AS p, :001_2 AS cfYear, :001_3 AS cfLocation,
:001_4 AS Delta, :001_5 AS Design, :001_6 AS SigmaLoc,
:001_7 AS Sigma, :001_8 AS SampleSize, :001_9 AS Intercept
FROM OneRowTable
UNION ALL
SELECT :002_1, :002_2, :002_3,
:002_4, :002_5, :002_6,
:002_7, :002_8, :002_9
FROM OneRowTable
UNION ALL
SELECT :003_1, :003_2, :003_3,
:003_4, :003_5, :003_6,
:003_7, :003_8, :003_9
FROM OneRowTable
UNION ALL
SELECT :004_1, :004_2, :004_3,
:004_4, :004_5, :004_6,
:004_7, :004_8, :004_9
FROM OneRowTable
UNION ALL
SELECT :005_1, :005_2, :005_3,
:005_4, :005_5, :005_6,
:005_7, :005_8, :005_9
FROM OneRowTable
UNION ALL
SELECT :006_1, :006_2, :006_3,
:006_4, :006_5, :006_6,
:006_7, :006_8, :006_9
FROM OneRowTable
UNION ALL
SELECT :007_1, :007_2, :007_3,
:007_4, :007_5, :007_6,
:007_7, :007_8, :007_9
FROM OneRowTable
UNION ALL
SELECT :008_1, :008_2, :008_3,
:008_4, :008_5, :008_6,
:008_7, :008_8, :008_9
FROM OneRowTable
UNION ALL
SELECT :009_1, :009_2, :009_3,
:009_4, :009_5, :009_6,
:009_7, :009_8, :009_9
FROM OneRowTable
UNION ALL
SELECT :010_1, :010_2, :010_3,
:010_4, :010_5, :010_6,
:010_7, :010_8, :010_9
FROM OneRowTable
UNION ALL
SELECT :011_1, :011_2, :011_3,
:011_4, :011_5, :011_6,
:011_7, :011_8, :011_9
FROM OneRowTable
UNION ALL
SELECT :012_1, :012_2, :012_3,
:012_4, :012_5, :012_6,
:012_7, :012_8, :012_9
FROM OneRowTable
UNION ALL
SELECT :013_1, :013_2, :013_3,
:013_4, :013_5, :013_6,
:013_7, :013_8, :013_9
FROM OneRowTable
UNION ALL
SELECT :014_1, :014_2, :014_3,
:014_4, :014_5, :014_6,
:014_7, :014_8, :014_9
FROM OneRowTable
UNION ALL
SELECT :015_1, :015_2, :015_3,
:015_4, :015_5, :015_6,
:015_7, :015_8, :015_9
FROM OneRowTable
UNION ALL
SELECT :016_1, :016_2, :016_3,
:016_4, :016_5, :016_6,
:016_7, :016_8, :016_9
FROM OneRowTable
UNION ALL
SELECT :017_1, :017_2, :017_3,
:017_4, :017_5, :017_6,
:017_7, :017_8, :017_9
FROM OneRowTable
UNION ALL
SELECT :018_1, :018_2, :018_3,
:018_4, :018_5, :018_6,
:018_7, :018_8, :018_9
FROM OneRowTable
UNION ALL
SELECT :019_1, :019_2, :019_3,
:019_4, :019_5, :019_6,
:019_7, :019_8, :019_9
FROM OneRowTable
UNION ALL
SELECT :020_1, :020_2, :020_3,
:020_4, :020_5, :020_6,
:020_7, :020_8, :020_9
FROM OneRowTable
UNION ALL
SELECT :021_1, :021_2, :021_3,
:021_4, :021_5, :021_6,
:021_7, :021_8, :021_9
FROM OneRowTable
UNION ALL
SELECT :022_1, :022_2, :022_3,
:022_4, :022_5, :022_6,
:022_7, :022_8, :022_9
FROM OneRowTable
UNION ALL
SELECT :023_1, :023_2, :023_3,
:023_4, :023_5, :023_6,
:023_7, :023_8, :023_9
FROM OneRowTable
UNION ALL
SELECT :024_1, :024_2, :024_3,
:024_4, :024_5, :024_6,
:024_7, :024_8, :024_9
FROM OneRowTable
UNION ALL
SELECT :025_1, :025_2, :025_3,
:025_4, :025_5, :025_6,
:025_7, :025_8, :025_9
FROM OneRowTable
UNION ALL
SELECT :026_1, :026_2, :026_3,
:026_4, :026_5, :026_6,
:026_7, :026_8, :026_9
FROM OneRowTable
UNION ALL
SELECT :027_1, :027_2, :027_3,
:027_4, :027_5, :027_6,
:027_7, :027_8, :027_9
FROM OneRowTable
UNION ALL
SELECT :028_1, :028_2, :028_3,
:028_4, :028_5, :028_6,
:028_7, :028_8, :028_9
FROM OneRowTable
UNION ALL
SELECT :029_1, :029_2, :029_3,
:029_4, :029_5, :029_6,
:029_7, :029_8, :029_9
FROM OneRowTable
UNION ALL
SELECT :030_1, :030_2, :030_3,
:030_4, :030_5, :030_6,
:030_7, :030_8, :030_9
FROM OneRowTable
UNION ALL
SELECT :031_1, :031_2, :031_3,
:031_4, :031_5, :031_6,
:031_7, :031_8, :031_9
FROM OneRowTable
UNION ALL
SELECT :032_1, :032_2, :032_3,
:032_4, :032_5, :032_6,
:032_7, :032_8, :032_9
FROM OneRowTable
UNION ALL
SELECT :033_1, :033_2, :033_3,
:033_4, :033_5, :033_6,
:033_7, :033_8, :033_9
FROM OneRowTable
UNION ALL
SELECT :034_1, :034_2, :034_3,
:034_4, :034_5, :034_6,
:034_7, :034_8, :034_9
FROM OneRowTable
UNION ALL
SELECT :035_1, :035_2, :035_3,
:035_4, :035_5, :035_6,
:035_7, :035_8, :035_9
FROM OneRowTable
UNION ALL
SELECT :036_1, :036_2, :036_3,
:036_4, :036_5, :036_6,
:036_7, :036_8, :036_9
FROM OneRowTable
UNION ALL
SELECT :037_1, :037_2, :037_3,
:037_4, :037_5, :037_6,
:037_7, :037_8, :037_9
FROM OneRowTable
UNION ALL
SELECT :038_1, :038_2, :038_3,
:038_4, :038_5, :038_6,
:038_7, :038_8, :038_9
FROM OneRowTable
UNION ALL
SELECT :039_1, :039_2, :039_3,
:039_4, :039_5, :039_6,
:039_7, :039_8, :039_9
FROM OneRowTable
UNION ALL
SELECT :040_1, :040_2, :040_3,
:040_4, :040_5, :040_6,
:040_7, :040_8, :040_9
FROM OneRowTable
UNION ALL
SELECT :041_1, :041_2, :041_3,
:041_4, :041_5, :041_6,
:041_7, :041_8, :041_9
FROM OneRowTable
UNION ALL
SELECT :042_1, :042_2, :042_3,
:042_4, :042_5, :042_6,
:042_7, :042_8, :042_9
FROM OneRowTable
UNION ALL
SELECT :043_1, :043_2, :043_3,
:043_4, :043_5, :043_6,
:043_7, :043_8, :043_9
FROM OneRowTable
UNION ALL
SELECT :044_1, :044_2, :044_3,
:044_4, :044_5, :044_6,
:044_7, :044_8, :044_9
FROM OneRowTable
UNION ALL
SELECT :045_1, :045_2, :045_3,
:045_4, :045_5, :045_6,
:045_7, :045_8, :045_9
FROM OneRowTable
UNION ALL
SELECT :046_1, :046_2, :046_3,
:046_4, :046_5, :046_6,
:046_7, :046_8, :046_9
FROM OneRowTable
UNION ALL
SELECT :047_1, :047_2, :047_3,
:047_4, :047_5, :047_6,
:047_7, :047_8, :047_9
FROM OneRowTable
UNION ALL
SELECT :048_1, :048_2, :048_3,
:048_4, :048_5, :048_6,
:048_7, :048_8, :048_9
FROM OneRowTable
UNION ALL
SELECT :049_1, :049_2, :049_3,
:049_4, :049_5, :049_6,
:049_7, :049_8, :049_9
FROM OneRowTable
) AS DT1
WHERE NOT (
DT1.p IS NULL
AND DT1.cfYear IS NULL
AND DT1.cfLocation IS NULL
AND DT1.Delta IS NULL
AND DT1.Design IS NULL
AND DT1.SigmaLoc IS NULL
AND DT1.Sigma IS NULL
AND DT1.SampleSize IS NULL
AND DT1.Intercept IS NULL
)
;
用法：
EXECUTE Add100Simulations
1, 0, 0, 0, 0, 0, 0, 0, 0,
2, 0, 0, 0, 0, 0, 0, 0, 0,
3, 0, 0, 0, 0, 0, 0, 0, 0,
4, 0, 0, 0, 0, 0, 0, 0, 0,
5, 0, 0, 0, 0, 0, 0, 0, 0,
6, 0, 0, 0, 0, 0, 0, 0, 0,
7, 0, 0, 0, 0, 0, 0, 0, 0,
8, 0, 0, 0, 0, 0, 0, 0, 0,
9, 0, 0, 0, 0, 0, 0, 0, 0,
10, 0, 0, 0, 0, 0, 0, 0, 0,
11, 0, 0, 0, 0, 0, 0, 0, 0,
12, 0, 0, 0, 0, 0, 0, 0, 0,
13, 0, 0, 0, 0, 0, 0, 0, 0,
14, 0, 0, 0, 0, 0, 0, 0, 0,
15, 0, 0, 0, 0, 0, 0, 0, 0,
16, 0, 0, 0, 0, 0, 0, 0, 0,
17, 0, 0, 0, 0, 0, 0, 0, 0,
18, 0, 0, 0, 0, 0, 0, 0, 0,
19, 0, 0, 0, 0, 0, 0, 0, 0,
20, 0, 0, 0, 0, 0, 0, 0, 0,
21, 0, 0, 0, 0, 0, 0, 0, 0,
22, 0, 0, 0, 0, 0, 0, 0, 0,
23, 0, 0, 0, 0, 0, 0, 0, 0,
24, 0, 0, 0, 0, 0, 0, 0, 0,
25, 0, 0, 0, 0, 0, 0, 0, 0,
26, 0, 0, 0, 0, 0, 0, 0, 0,
27, 0, 0, 0, 0, 0, 0, 0, 0,
28, 0, 0, 0, 0, 0, 0, 0, 0,
29, 0, 0, 0, 0, 0, 0, 0, 0,
30, 0, 0, 0, 0, 0, 0, 0, 0,
31, 0, 0, 0, 0, 0, 0, 0, 0,
32, 0, 0, 0, 0, 0, 0, 0, 0,
33, 0, 0, 0, 0, 0, 0, 0, 0,
34, 0, 0, 0, 0, 0, 0, 0, 0,
35, 0, 0, 0, 0, 0, 0, 0, 0,
36, 0, 0, 0, 0, 0, 0, 0, 0,
37, 0, 0, 0, 0, 0
请注意，以上是 ANSI-92 查询模式语法（请参阅http://office.microsoft.co
【讨论】：
每天学习新东西。我删除了我的评论，说这是不可能的：性能如何（与单个事务中的多个插入相比）？ Pity Access 完全迫使这样的黑客这样做......【参考方案8】：Public Sub Insert_tb_TABLE_DATA_TABLE(ByVal arg_Data_Table As DataTable, Optional ByVal arg_Conn_Open As Boolean = False)
Try
If arg_Data_Table.Rows.Count = 0 Then
Return
End If
If Not arg_Conn_Open Then
_Connection_Access = New OleDbConnection(My.Settings.db_GENESIS_ACCESS)
_Connection_Access.Open()
End If
Dim query As String = String.Empty
query = String.Concat("INSERT INTO <TABLE> (<Field1>, <Field2>, <Field3>,<Field4>) SELECT * FROM (", _
" SELECT ", arg_Data_Table.Rows(0)("Field1"), " AS Field1, '", _
arg_Data_Table.Rows(0)("Field2"), "' as Field2,", "'", _
arg_Data_Table.Rows(0)("Field3"), "' as Field3, '", _
arg_Data_Table.Rows(0)("Field4"), "' as Field4 FROM tb_REFERENCE")
Dim lc_Count As Integer = 0
For i As Integer = 1 To arg_Data_Table.Rows.Count - 1
If lc_Count = 45 Then
query += ") AS TMP"
_Command_Access = New OleDbCommand(query, _Connection_Access)
_Command_Access.ExecuteNonQuery()
_Command_Access.Dispose()
query = String.Concat("INSERT INTO TABLE (<Field1>, <Field2>, <Field3>,<Field4>) SELECT * FROM (", _
" SELECT ", arg_Data_Table.Rows(i)("Field1"), " AS Field1, '", _
arg_Data_Table.Rows(i)("Field2"), "' as Field2,", "'", _
arg_Data_Table.Rows(i)("Field3"), "' as Field3, '", _
arg_Data_Table.Rows(i)("Field4"), "' as Field4 FROM tb_REFERENCE ")
lc_Count = -1
Else : query += String.Concat(" UNION ALL SELECT ", arg_Data_Table.Rows(i)("Field1"), ", '", _
arg_Data_Table.Rows(i)("Field2"), "',", "'", _
arg_Data_Table.Rows(i)("Field3"), "', '", _
arg_Data_Table.Rows(i)("Field"), "' FROM tb_REFERENCE ")
End If
lc_Count += 1
Next
query += ") AS TMP"
_Command_Access = New OleDbCommand(query, _Connection_Access)
_Command_Access.ExecuteNonQuery()
_Command_Access.Dispose()
If Not arg_Conn_Open Then _Connection_Access.Close()
Catch ex As Exception
MessageBox.Show(String.Concat("ERROR: ", ex.Message), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1)
Finally
GC.Collect()
GC.WaitForPendingFinalizers()
End Try
End Sub
【讨论】：
tb_REFERENCE 是任何已插入至少一行的表。使用数字 45，因为访问标准只接受 49 UNION ALL。我使用 45 以确保它无论如何都能正常工作。以上是关于在 ms-access 表中插入多行的 SQL 代码的主要内容，如果未能解决你的问题，请参考以下文章
MS-Access SQL 将同一表中的值从“Value”更新为“*Value”